1202012220021 has 8 divisors (see below), whose sum is σ = 1628956451424. Its totient is φ = 788204734320.

The previous prime is 1202012220001. The next prime is 1202012220049. The reversal of 1202012220021 is 1200222102021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1202012220021 - 2¹⁰ = 1202012218997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202012220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3284186211 + ... + 3284186576.

It is an arithmetic number, because the mean of its divisors is an integer number (203619556428).

Almost surely, 2^{1202012220021} is an apocalyptic number.

It is an amenable number.

1202012220021 is a deficient number, since it is larger than the sum of its proper divisors (426944231403).

1202012220021 is an equidigital number, since it uses as much as digits as its factorization.

1202012220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6568372851.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1202012220021 its reverse (1200222102021), we get a palindrome (2402234322042).

The spelling of 1202012220021 in words is "one trillion, two hundred two billion, twelve million, two hundred twenty thousand, twenty-one".